20443119 has 4 divisors (see below), whose sum is σ = 27257496. Its totient is φ = 13628744.

The previous prime is 20443109. The next prime is 20443123. The reversal of 20443119 is 91134402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20443119 - 2²¹ = 18345967 is a prime.

It is a super-2 number, since 2×20443119² = 835842228896322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20443109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3407184 + ... + 3407189.

It is an arithmetic number, because the mean of its divisors is an integer number (6814374).

Almost surely, 2^20443119 is an apocalyptic number.

20443119 is a deficient number, since it is larger than the sum of its proper divisors (6814377).

20443119 is an equidigital number, since it uses as much as digits as its factorization.

20443119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814376.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20443119 is about 4521.4067501166. The cubic root of 20443119 is about 273.4318193911.

The spelling of 20443119 in words is "twenty million, four hundred forty-three thousand, one hundred nineteen".